diff --git a/vendor/symposion/speakers/models.py b/vendor/symposion/speakers/models.py
index 93f6a3db9b34ddadac78e20b9e9586d9e01b851d..5f2a86a679da49de6a4b154dd1164de487ad3e02 100644
--- a/vendor/symposion/speakers/models.py
+++ b/vendor/symposion/speakers/models.py
@@ -157,3 +157,8 @@ class Speaker(models.Model):
             for p in self.copresentations.all():
                 presentations.append(p)
         return presentations
+
+    @property
+    def code(self):
+        """ A unique string that identifies this speaker. """
+        return f"{self.pk}"